Home / 42,439.74-63,562.73-20,268.74

Finding the Fourth Proportional to 42,439.74, 63,562.73 and 20,268.74

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Solution

The fourth proportional to 42,439.74, 63,562.73 and 20,268.74 is: 30,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,439.74 : 63,562.73 = 20,268.74 : x
  2. Step 2: Convert to fraction form
    42,439.74/63,562.73 = 20,268.74/x
  3. Step 3: Cross multiply
    42,439.74x = 63,562.73 × 20,268.74
  4. Step 4: Simplify right side
    42,439.74x = 1,288,336,028.90
  5. Step 5: Solve for x
    x = 1,288,336,028.90/42,439.74
  6. Step 6: Final answer
    x = 30,356.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.